CN109175746A - A kind of manufacturing process of vacuum heat-preserving titanium cup - Google Patents
A kind of manufacturing process of vacuum heat-preserving titanium cup Download PDFInfo
- Publication number
- CN109175746A CN109175746A CN201811254673.4A CN201811254673A CN109175746A CN 109175746 A CN109175746 A CN 109175746A CN 201811254673 A CN201811254673 A CN 201811254673A CN 109175746 A CN109175746 A CN 109175746A
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- CN
- China
- Prior art keywords
- shell
- stainless steel
- liner
- steel coil
- outer gallbladder
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G19/00—Table service
- A47G19/22—Drinking vessels or saucers used for table service
- A47G19/2288—Drinking vessels or saucers used for table service with means for keeping liquid cool or hot
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
Abstract
The invention discloses a kind of manufacturing process of vacuum heat-preserving titanium cup, comprising the following steps: liner shell and liner back welding are connect, liner shell, liner bottom material be titanium；It is stainless steel coil is concordant with liner shell and weld, obtain first stage semi-finished product；First stage semi-finished product are inverted, brazing metal is put in the junction of stainless steel coil Yu liner shell, is then placed in vacuum drying oven；It is molten to brazing metal in the gap between stainless steel coil and liner shell；Outer gallbladder shell and stainless steel coil are welded；By outer gallbladder bottom and outer gallbladder case weld, take cored solder to be set to and vacuumize on hole, obtain second stage semi-finished product, outer gallbladder shell, outer gallbladder bottom material be stainless steel；Second stage semi-finished product are inverted into vacuum drying oven, until cored solder melts and block completely stopping when vacuumizing hole, vacuum layer is formed, completes the manufacture to vacuum heat-preserving titanium cup.The present invention is by above step, so that the service life is longer, heat insulation effect is more preferable for finally obtained vacuum cup.
Description
Technical field
The present invention relates to cup more particularly to a kind of manufacturing process of vacuum heat-preserving titanium cup.
Background technique
Vacuum cup is a kind of water container with heat insulation function, can be protected to the liquid being stored in vacuum cup
Temperature effectively extends the retention time of fluid temperature.Existing vacuum cup is true generally by being arranged between liner, shell
The mode of dead level realizes heat insulation effect, and general vacuum cup its liner, shell can be effectively protected using stainless steel material
Demonstrate,prove the leakproofness after welding between liner, shell.
And with the continuous development of society, occur some vacuum cups made of titanium currently on the market, because of titanium
Accessory has better corrosion resistance, antibiotic property, therefore receives the warm welcome of people.But the vacuum cup as made of titanium
Price is higher, has drawn high the production cost of enterprise, therefore there are also producers to manufacture in such a way that titanium and stainless steel combine
Vacuum cup, but because between titanium and stainless steel property difference it is larger, both under titanium and stainless steel are all in molten condition
It is immiscible, even if so that can still have many subtle air on the welding surface of the two after titanium and stainless steel welding
Gap, so that the vacuum cup poor air-tightness that manufacture obtains, can promptly lose insulating power, thus significantly over time
The heat insulation effect and service life for affecting vacuum cup, need to make improvements this.
Summary of the invention
The present invention combines the vacuum cup poor air-tightness of manufacture, heat insulation effect for titanium existing in the prior art and stainless steel
The defects of poor, provides a kind of manufacturing process of new vacuum heat-preserving titanium cup.
In order to solve the above-mentioned technical problem, the invention is realized by the following technical scheme:
A kind of manufacturing process of vacuum heat-preserving titanium cup, comprising the following steps:
A. a liner shell, liner bottom are taken, will be aligned at the top of the bottom of liner shell and liner bottom, under the protection of argon gas
Liner shell and liner back welding are connect, the liner shell, liner bottom material be titanium；
B. a stainless steel coil is taken, the inner surface of the stainless steel coil is pressed against on the outer surface of the liner shell, and by institute
The oral area for stating stainless steel coil is concordant with the oral area of the liner shell；
C. under the protection of argon gas, stainless steel coil and liner shell are welded, to obtain first stage semi-finished product；
D. the oral area of the first stage semi-finished product is inverted downwards, takes brazing metal and brazing metal is placed in stainless steel coil
With the junction of liner shell, and the first stage semi-finished product are put into vacuum drying oven；
E. start vacuum drying oven, vacuum furnace inner gas pressure is evacuated to 10-4Pa, then by vacuum furnace temperature be heated to 700 DEG C~
800 DEG C, the brazing metal is made to be molten to the surface of stainless steel coil, the surface of liner shell and stainless steel coil and liner shell
Between gap in；
F. an outer gallbladder shell is taken, the outer surface of the inner surface of the outer gallbladder shell and stainless steel coil is compressed, and by the outer gallbladder
The oral area of shell and the oral area of stainless steel coil are concordant, then weld the outer gallbladder shell and the stainless steel coil；
G. an outer gallbladder bottom is taken, is provided on the outer gallbladder bottom and vacuumizes hole, by the upper end at the outer gallbladder bottom and the outer gallbladder shell
Lower end welding, and take a cored solder and be set to it is described vacuumize on hole, to obtain second stage semi-finished product, the outer gallbladder
Shell, outer gallbladder bottom material be stainless steel；
H. the oral area of the second stage semi-finished product is inverted downwards and is put into vacuum drying oven, starting vacuum drying oven simultaneously will be in vacuum drying oven
Gas pressure is evacuated to 10-4Then vacuum furnace temperature is heated to 500 DEG C~550 DEG C by Pa, until the cored solder melting and it is complete
Stopping when vacuumizing hole described in closure, the space shape for surrounding liner bottom, liner shell, stainless steel coil, outer gallbladder shell, outer gallbladder bottom
At vacuum layer, to complete the manufacture to vacuum heat-preserving titanium cup.
Step a is for liner shell, liner bottom to be welded to each other, to form liner；Step b, c, d, e are for will be stainless
Steel ring is fixed on the oral area of liner shell, and blocks the gap between liner shell and stainless steel coil by brazing metal,
Guarantee the air-tightness between liner shell, stainless steel coil, to seal up the external margin of liner shell, and to a certain extent
Further improve the bonding strength between liner shell and stainless steel coil；Wherein brazing metal can select this Mick of Shanghai to weld
The brazing metal of material Co., Ltd production, the brazing metal that Beijing Wei Erke wlding Co., Ltd can also be selected to produce can also
To select the brazing metal of other company's productions；Step f is for outer gallbladder shell to be welded to each other with stainless steel coil, so that outside
Gallbladder shell oral area can be indirectly connected with by stainless steel coil with liner shell oral area, thus ensure that liner shell, stainless steel coil,
The fastness and air-tightness connected between outer gallbladder shell；Step g is for outer gallbladder bottom and outer gallbladder shell to be welded to each other, to pass through
Liner bottom, liner shell, stainless steel coil, outer gallbladder shell, outer gallbladder bottom form one and surround space；Step h is for forming step g
Space of surrounding vacuumized, to form vacuum layer.
The present invention can effectively solve the problem that the liner shell of titanium matter and the outer gallbladder shell of stainless steel material by above step
It can not securely be welded when being welded to each other, and after welding the problem of the poor air-tightness of the two.The present invention passes through stainless steel coil and gold
On the one hand the mutual cooperation for belonging to solder can be such that air-tightness after stainless steel coil and the liner case weld of titanium matter obtains very well
Improvement, be on the other hand welded to each other by the outer gallbladder shell of stainless steel coil and stainless steel material, enable stainless steel coil with
The outer gallbladder shell of stainless steel material is securely joined together, to ensure that liner shell, stainless steel coil, outer by stainless steel coil
Weld strength and air-tightness between gallbladder shell, so that the service life is longer, heat insulation effect is more preferable for finally obtained vacuum cup.
Preferably, a kind of manufacturing process of vacuum heat-preserving titanium cup described above, on the inner surface of the stainless steel coil
It is provided with the first inclined-plane, holding tank is formed between first inclined-plane and liner housing outer surface, the brazing metal is located at
In the holding tank.
Holding tank is formed between liner housing outer surface and stainless steel coil inner surface preferably to be fixed brazing metal
Between liner shell and stainless steel coil, and after the oral area of semi-finished product is inverted downwards in the first stage, the metal welding in holding tank
Material can be influenced to flow downward always after melting by gravity, and the first inclined-plane on stainless steel coil inner surface can guide
Molten metal solder is constantly toward filling at the gap between liner housing outer surface and stainless steel coil inner surface, thus preferably
Guarantee the airtight effect of brazing metal.
Preferably, a kind of manufacturing process of vacuum heat-preserving titanium cup described above, on the outer surface of the stainless steel coil
It is provided with the second inclined-plane, the bottom on second inclined-plane is connected with the bottom on first inclined-plane, second inclined-plane and outer
Guide groove is formed between the inner surface of gallbladder shell.
In the fabrication process, when outer gallbladder shell is placed on the outer surface of stainless steel coil, the second inclined-plane can be effectively right
The oral area radius for being inserted in movement and guiding and suitably expanding outer gallbladder shell of outer gallbladder shell, so that the outer gallbladder shell after being inserted in place
Interference fit is formed between body and stainless steel coil, to guarantee that outer gallbladder shell can be placed on stainless steel coil securely, goes forward side by side one
Step promotes the firmness after the two welding.And it to be the two that guide groove is formed between the second inclined-plane and outer gallbladder shell inner surface
Certain deformation space is provided, avoids damaging outer gallbladder shell because pressure is excessive, the quality after ensure that outer gallbladder shell assembly.
Preferably, a kind of manufacturing process of vacuum heat-preserving titanium cup described above, in the step g, the outer gallbladder bottom
Inside is additionally provided with getter.
Getter can absorb portion gas remaining in vacuum layer after vacuumizing operation, guarantee vacuum
The vacuum degree of layer, and in subsequent use process, getter is able to maintain the vacuum degree of vacuum layer, to further extend true
The service life of sky heat preservation titanium cup.
Preferably, a kind of manufacturing process of vacuum heat-preserving titanium cup described above, in the step g, the outer gallbladder bottom
Inside is additionally provided with reinforcer, the middle part of the reinforcer be located at it is described vacuumize on hole, on the reinforcer with vacuumize
Hole corresponding position is provided with intercommunicating pore.
Reinforcer can reinforce the structural strength that outer gallbladder bottom especially vacuumizes structure near hole, so that vacuumizing operation
In the process and after forming vacuum layer, outer gallbladder bottom will not excessive deformation under the action of negative pressure, on the one hand ensure that vacuum layer
Volume will not reduce, ensure that the heat insulation effect of vacuum heat-preserving titanium cup；On the other hand it can be avoided outer gallbladder bottom and forming vacuum
It is directly contacted after layer with liner bottom and liner bottom and outer gallbladder bottom is made to form heat transfer to seriously affect vacuum heat-preserving titanium cup
Heat insulation effect ensure that the service life of vacuum heat-preserving titanium cup.
Preferably, a kind of manufacturing process of vacuum heat-preserving titanium cup described above, the reinforcer is in bar shaped.
The reinforcer of bar shaped can be preferably bonded outer gallbladder bottom, to play better booster action.
Preferably, a kind of manufacturing process of vacuum heat-preserving titanium cup described above, the quantity of the reinforcer be 2 simultaneously
Intersect setting.
2 cross one another reinforcers cooperate, and can further enhance the structural strength vacuumized near hole, guarantee
The structural strength near hole is vacuumized in operation process and vacuumized after formation vacuum layer, is further ensured that product uses the longevity
Life.
Preferably, a kind of manufacturing process of vacuum heat-preserving titanium cup described above, further includes sealed connecting component, it is described outer
Sealed connection slot is additionally provided at hole vacuumizing on the outside of gallbladder bottom, the sealed connecting component is set in the sealed connection slot simultaneously
It shelters from closure and vacuumizes the cored solder behind hole.
Sealed connecting component and sealed connection slot cooperate, and on the one hand can shelter from cored solder, further promote product
On the other hand aesthetics can provide protective effect to cored solder, avoid in use process cored solder directly contacted with foreign object and
Lead to damage of colliding with, extends the service life of vacuum heat-preserving titanium cup.
Preferably, a kind of manufacturing process of vacuum heat-preserving titanium cup described above, the inner surface of the stainless steel coil are
Rough surface.
Coarse inner surface can increase stainless steel coil and liner when the outer surface of stainless steel coil and liner shell is welded
The contact area of shell, to further enhance the weld strength after stainless steel coil and liner case weld, and in metal welding
When material is molten in the gap between stainless steel coil and liner shell, the bonding strength with brazing metal can be also further enhanced,
And further promote the airtight effect of brazing metal.
Detailed description of the invention
Fig. 1 is the structural schematic diagram after liner shell and liner back welding connect in the present invention；
Fig. 2 is stainless steel coil and the structural schematic diagram after liner case weld in the present invention；
Fig. 3 is the partial enlarged view in the portion A in Fig. 2；
Fig. 4 is the structural schematic diagram after gallbladder shell in China and foreign countries' of the present invention and stainless steel coil welding；
Fig. 5 is the partial enlarged view in the portion B in Fig. 4；
Fig. 6 is the structural schematic diagram at China and foreign countries' gallbladder of the present invention bottom；
Fig. 7 is the structural schematic diagram after gallbladder shell in China and foreign countries' of the present invention connects with outer gallbladder back welding；
Fig. 8 is that cored solder closure vacuumizes the structural schematic diagram behind hole in the present invention；
Fig. 9 is that sealed connecting component shelters from the structural schematic diagram after vacuumizing hole in the present invention；
Figure 10 is the partial enlarged view of China and foreign countries' gallbladder of the present invention bottom.
Specific embodiment
Present invention is further described in detail for 1-10 and specific embodiment with reference to the accompanying drawing, but they are not to this
The limitation of invention:
Embodiment 1
As shown in Figures 1 to 10, a kind of manufacturing process of vacuum heat-preserving titanium cup, comprising the following steps:
A. a liner shell 1, liner bottom 2 are taken, the bottom of liner shell 1 is aligned with the top at liner bottom 2, in argon gas ceiling
Liner shell 1 and liner bottom 2 are welded under part, the liner shell 1, liner bottom 2 material be titanium；
B. a stainless steel coil 3 is taken, the inner surface of the stainless steel coil 3 is pressed against on the outer surface of the liner shell 1, and will
The oral area of the stainless steel coil 3 is concordant with the oral area of the liner shell 1；
C. under the protection of argon gas, stainless steel coil 3 and liner shell 1 are welded, to obtain first stage semi-finished product；
D. the oral area of the first stage semi-finished product is inverted downwards, takes brazing metal 5 and brazing metal 5 is placed in stainless steel
The junction of circle 3 and liner shell 1, and the first stage semi-finished product are put into vacuum drying oven；
E. start vacuum drying oven, vacuum furnace inner gas pressure be evacuated to 10-4Pa, then by vacuum furnace temperature be heated to 700 DEG C~
800 DEG C, the brazing metal 5 is made to be molten to the surface of stainless steel coil 3, the surface of liner shell 1 and stainless steel coil 3 and liner
In gap between shell 1；
F. an outer gallbladder shell 4 is taken, the outer surface of the inner surface of the outer gallbladder shell 4 and stainless steel coil 3 is compressed, and will be described outer
The oral area of gallbladder shell 4 is concordant with the oral area of stainless steel coil 3, then welds the outer gallbladder shell 4 with the stainless steel coil 3；
G. an outer gallbladder bottom 6 is taken, is provided on the outer gallbladder bottom 6 and vacuumizes hole 61, by the upper end at the outer gallbladder bottom 6 and the outer gallbladder
The lower end of shell 4 is welded, and take a cored solder 7 and be set to it is described vacuumize on hole 61, to obtain second stage semi-finished product,
The outer gallbladder shell 4, outer gallbladder bottom 6 material be stainless steel；
H. the oral area of the second stage semi-finished product is inverted downwards and is put into vacuum drying oven, starting vacuum drying oven simultaneously will be in vacuum drying oven
Gas pressure is evacuated to 10-4Then vacuum furnace temperature is heated to 500 DEG C~550 DEG C by Pa, until the cored solder 7 melting and it is complete
Stopping when vacuumizing hole 61 described in full closure closes liner bottom 2, liner shell 1, stainless steel coil 3, outer gallbladder shell 4, outer gallbladder bottom 6
The space enclosed forms vacuum layer 9, to complete the manufacture to vacuum heat-preserving titanium cup.
Preferably, the first inclined-plane 31 is provided on the inner surface of the stainless steel coil 3, first inclined-plane 31 and liner
Holding tank 33 is formed between 1 outer surface of shell, the brazing metal 5 is located in the holding tank 33.
Preferably, the second inclined-plane 32 is provided on the outer surface of the stainless steel coil 3, the bottom on second inclined-plane 32
It is connected with the bottom on first inclined-plane 31, is formed with guiding between second inclined-plane 32 and the inner surface of outer gallbladder shell 4
Slot 34.
Preferably, being additionally provided with getter 63 on the inside of the outer gallbladder bottom 6 in the step g.
Preferably, in the step g, it is additionally provided with reinforcer 64 on the inside of the outer gallbladder bottom 6, in the reinforcer 64
Portion be located at it is described vacuumize on hole 61, on the reinforcer 64 with vacuumize 61 corresponding position of hole and be provided with intercommunicating pore 65.
Preferably, the reinforcer 64 is in bar shaped.
Preferably, the quantity of the reinforcer 64 is 2 and the setting that intersects.
Preferably, further include sealed connecting component 8, outer 6 outside of gallbladder bottom is additionally provided with sealing vacuumizing at hole 61
Link slot 62, the sealed connecting component 8, which is set in the sealed connection slot 62 and shelters from closure, vacuumizes the pricker behind hole 61
Solder 7.
In short, the foregoing is merely presently preferred embodiments of the present invention, made by all ranges according to the present patent application patent
Deng variation and modification, it is all covered by the present invention.
Claims (9)
1. a kind of manufacturing process of vacuum heat-preserving titanium cup, which comprises the following steps:
A. a liner shell (1), liner bottom (2) are taken, the bottom of liner shell (1) is aligned with the top of liner bottom (2), in argon
Liner shell (1) and liner bottom (2) are welded under the conditions of gas shielded, the liner shell (1), liner bottom (2) material be titanium；
B. a stainless steel coil (3) are taken, the inner surface of the stainless steel coil (3) is pressed against to the outer surface of the liner shell (1)
On, and the oral area of the stainless steel coil (3) is concordant with the oral area of the liner shell (1)；
C. under the protection of argon gas, stainless steel coil (3) and liner shell (1) are welded, to obtain the first stage half
Finished product；
D. the oral area of the first stage semi-finished product is inverted downwards, takes brazing metal (5) and is placed in brazing metal (5) not
The junction of rust steel ring (3) and liner shell (1), and the first stage semi-finished product are put into vacuum drying oven；
E. start vacuum drying oven, vacuum furnace inner gas pressure is evacuated to 10-4Then vacuum furnace temperature is heated to 700 DEG C~800 by Pa
DEG C, so that the brazing metal (5) is molten to the surface of stainless steel coil (3), the surface of liner shell (1) and stainless steel coil (3)
In gap between liner shell (1)；
F. an outer gallbladder shell (4) is taken, the outer surface of the inner surface of the outer gallbladder shell (4) and stainless steel coil (3) is compressed, and will
The oral area of the outer gallbladder shell (4) is concordant with the oral area of stainless steel coil (3), then by the outer gallbladder shell (4) with it is described stainless
Steel ring (3) welding；
G. take an outer gallbladder bottom (6), be provided on the outer gallbladder bottom (6) and vacuumize hole (61), by the upper end of the outer gallbladder bottom (6) with
The lower end of the outer gallbladder shell (4) is welded, and take a cored solder (7) and be set to it is described vacuumize on hole (61), to obtain
Second stage semi-finished product, the outer gallbladder shell (4), outer gallbladder bottom (6) material be stainless steel；
H. the oral area of the second stage semi-finished product is inverted downwards and is put into vacuum drying oven, starting vacuum drying oven simultaneously will be in vacuum drying oven
Gas pressure is evacuated to 10-4Then vacuum furnace temperature is heated to 500 DEG C~550 DEG C by Pa, until the cored solder (7) melting is simultaneously
Stop when vacuumizing hole (61) described in blocking completely, makes liner bottom (2), liner shell (1), stainless steel coil (3), outer gallbladder shell
(4), the space that outer gallbladder bottom (6) is surrounded forms vacuum layer (9), to complete the manufacture to vacuum heat-preserving titanium cup.
2. a kind of manufacturing process of vacuum heat-preserving titanium cup according to claim 1, it is characterised in that: the stainless steel coil
(3) it is provided on inner surface the first inclined-plane (31), is formed between first inclined-plane (31) and liner shell (1) outer surface
Holding tank (33), the brazing metal (5) are located in the holding tank (33).
3. a kind of manufacturing process of vacuum heat-preserving titanium cup according to claim 2, it is characterised in that: the stainless steel coil
(3) it is provided on outer surface the second inclined-plane (32), the bottom of the bottom of second inclined-plane (32) and first inclined-plane (31)
Portion is connected, and is formed with guide groove (34) between second inclined-plane (32) and the inner surface of outer gallbladder shell (4).
4. a kind of manufacturing process of vacuum heat-preserving titanium cup according to claim 1, it is characterised in that: in the step g, institute
It states and is additionally provided with getter (63) on the inside of outer gallbladder bottom (6).
5. a kind of manufacturing process of vacuum heat-preserving titanium cup according to claim 1, it is characterised in that: in the step g, institute
It states and is additionally provided with reinforcer (64) on the inside of outer gallbladder bottom (6), the middle part of the reinforcer (64) vacuumizes on hole (61) positioned at described,
On the reinforcer (64) with vacuumize hole (61) corresponding position and be provided with intercommunicating pore (65).
6. a kind of manufacturing process of vacuum heat-preserving titanium cup according to claim 5, it is characterised in that: the reinforcer (64)
In bar shaped.
7. a kind of manufacturing process of vacuum heat-preserving titanium cup according to claim 5, it is characterised in that: the reinforcer (64)
Quantity be 2 and the setting that intersects.
8. a kind of manufacturing process of vacuum heat-preserving titanium cup according to claim 1, it is characterised in that: further include being tightly connected
Part (8) is tightly connected slot (62) vacuumizing to be additionally provided at hole (61) on the outside of the outer gallbladder bottom (6), the sealed connecting component
(8) it is set in sealed connection slot (62) and shelters from closure and vacuumize the cored solder (7) after hole (61).
9. a kind of manufacturing process of vacuum heat-preserving titanium cup according to claim 1, it is characterised in that: the stainless steel coil
(3) inner surface is rough surface.
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| CN201811254673.4A CN109175746B (en) | 2018-10-26 | 2018-10-26 | Manufacturing process of vacuum heat-preservation titanium cup |
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| CN201811254673.4A CN109175746B (en) | 2018-10-26 | 2018-10-26 | Manufacturing process of vacuum heat-preservation titanium cup |
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| CN109175746B CN109175746B (en) | 2020-09-22 |
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| CN109746598A (en) * | 2019-01-29 | 2019-05-14 | 广东诺巴特智能设备有限公司 | A kind of vacuum cup getter welder |
| CN110250859A (en) * | 2019-07-08 | 2019-09-20 | 永康市春佳工贸有限公司 | Three layers of vacuum titanium cup of one kind and its preparation process |
| CN110549022A (en) * | 2019-09-17 | 2019-12-10 | 浙江飞剑工贸有限公司 | Manufacturing process of double-layer special-shaped flat kettle |
| CN110977107A (en) * | 2019-11-18 | 2020-04-10 | 浙江飞剑工贸有限公司 | Manufacturing process of vacuum thermos cup |
| CN111642950A (en) * | 2019-09-05 | 2020-09-11 | 赛洛有限责任公司 | Temperature control cup and manufacturing method thereof |
| CN112496194A (en) * | 2020-09-29 | 2021-03-16 | 浙江给力工贸有限公司 | Vacuum thermos cup liner and processing technology |
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| CN113714744A (en) * | 2021-09-10 | 2021-11-30 | 浙江飞剑工贸有限公司 | Manufacturing method of kettle |
| CN115122047A (en) * | 2022-06-15 | 2022-09-30 | 浙江飞剑工贸有限公司 | Manufacturing method of vacuum heat-insulation container with inner titanium and outer stainless steel |
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